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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Rho Aquarii ： ウィキペディア英語版 Rho Aquarii Rho Aquarii (ρ Aqr, ρ Aquarii) is the Bayer designation for a binary star in the equatorial constellation of Aquarius. It is visible to the naked eye with an apparent visual magnitude of +5.34.〔 Based upon parallax measurements made during the Hipparcos mission, this star is at a distance of roughly from Earth.〔 This is a single-lined spectroscopic binary, with the presence of a companion being revealed by Doppler shifts in the spectrum.〔 The primary is a giant star with a stellar classification of .〔 It is a Mercury-Manganese star, showing a surfeit of these elements in the spectrum.〔 With five times the Sun's mass, this star is radiating 1,035〔 times as much luminosity from its outer atmosphere at an effective temperature of 12,593 K.〔 This heat gives it the blue-white hue of a B-type star.〔 The companion may be a variable star.〔 ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Rho Aquarii」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.